circadian clock

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He earned his PhD in 2006 from the Graduate School of Science at Nagoya University, where he studied the circadian clock in cyanobacteria.

From Science Daily • Jan. 13, 2026

Research shows smartphones are particularly disruptive to the circadian clock that regulates sleep and other hormones.

From Seattle Times • May 8, 2024

These results suggest that the circadian clock exerts a protective effect on dopaminergic neurons against oxidative stress.

From Science Daily • Sep. 28, 2023

Our internal biological timekeeper, or circadian clock, regulates many aspects of our physiology and behavior.

From Salon • Aug. 3, 2023

Adult human cells divide every 18 to 24 hours, and one function of the circadian clock is to tell cells to do that at night to avoid DNA damage from sunlight.

From Scientific American • Jun. 20, 2023